Leave the company field null in the product
- this will make it available to all companies.
You need to install product_multi_company - this simply makes fields cost,
sell to be property fields. SOH is calculated by company standard.
Regards

I have a scenario where there are multiple companies. Parent company and
some child companies. I want the product to belong to all companies. I
noticed that company_id was a field on product.template and not a property
field. I am not sure of the exact requirements, but I may want to have
different cost and stock per company while having 1 product record in the
database.

When I switch between companies I can still see the product, but it always
belongs to the company it was created under. I would also like to have
a company shared category tree. Is there some work I can look at from someone,
some module, etc, or some advise/direction would be appreciated.

Additionally, I thought the way Odoo switches companies by default was
not user intuitive. I found a module that does this and it works well,
however when I switch companies it redirects me to the default message
screen. In the v7 module, it reloads the current view. Any comments?

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